Package net.sf.jasperreports.crosstabs.fill.calculation

Class BucketDefinition

java.lang.Object

net.sf.jasperreports.crosstabs.fill.calculation.BucketDefinition

Direct Known Subclasses:

MultiAxisDataService.PropertiesWrapperBucketDefintion

public class BucketDefinition
extends Object

Bucket definition.

Author:

Lucian Chirita (lucianc@users.sourceforge.net)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	BucketDefinition.Bucket	Bucket value class.
class	BucketDefinition.OrderDecoratorBucket

Field Summary

Fields

Modifier and Type	Field	Description
protected Comparator<Object>	bucketValueComparator
static String	EXCEPTION_MESSAGE_KEY_UNSUPPORTED_ORDER_TYPE
protected BucketOrderer	orderer
protected BucketDefinition.Bucket	VALUE_NULL	The null bucket.
protected BucketDefinition.Bucket	VALUE_TOTAL	The total value for this bucket.
protected static byte	VALUE_TYPE_NULL	Value type used for null bucket values.
protected static byte	VALUE_TYPE_TOTAL	Value type used for total buckets.
protected static byte	VALUE_TYPE_VALUE	Value type used for non-null values.

Constructor Summary

Constructors

Constructor	Description
BucketDefinition(Class<?> valueClass, BucketOrderer orderer, Comparator<Object> comparator, BucketOrder order, CrosstabTotalPositionEnum totalPosition)	Creates a bucket.

Method Summary

Modifier and Type	Method	Description
boolean	computeTotal()	Whether this bucket needs total calculation.
BucketDefinition.Bucket	create(Object value)	Creates a BucketValue object for a given value.
static Comparator<Object>	createOrderComparator(Comparator<Object> comparator, BucketOrder order)
BucketOrder	getOrder()
BucketOrderer	getOrderer()
CrosstabTotalPositionEnum	getTotalPosition()	Returns the total bucket position.
boolean	isMergeHeaderCells()
boolean	isSorted()
void	setComputeTotal()	Instructs that the bucket will need total bucket calculation.
void	setMergeHeaderCells(boolean mergeHeaderCells)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

EXCEPTION_MESSAGE_KEY_UNSUPPORTED_ORDER_TYPE

public static final String EXCEPTION_MESSAGE_KEY_UNSUPPORTED_ORDER_TYPE

See Also:

Constant Field Values

VALUE_TYPE_VALUE

protected static final byte VALUE_TYPE_VALUE

Value type used for non-null values.

See Also:

Constant Field Values

VALUE_TYPE_NULL

protected static final byte VALUE_TYPE_NULL

Value type used for null bucket values.

See Also:

Constant Field Values

VALUE_TYPE_TOTAL

protected static final byte VALUE_TYPE_TOTAL

Value type used for total buckets.

See Also:

Constant Field Values

VALUE_TOTAL

protected final BucketDefinition.Bucket VALUE_TOTAL

The total value for this bucket.

VALUE_NULL

protected final BucketDefinition.Bucket VALUE_NULL

The null bucket.

bucketValueComparator

protected final Comparator<Object> bucketValueComparator

orderer

protected final BucketOrderer orderer

Constructor Detail

BucketDefinition

public BucketDefinition(Class<?> valueClass,
                        BucketOrderer orderer,
                        Comparator<Object> comparator,
                        BucketOrder order,
                        CrosstabTotalPositionEnum totalPosition)
                 throws JRException

Creates a bucket.

Parameters:

valueClass - the class of the bucket values

orderer - bucket entries orderer

comparator - the comparator to use for bucket sorting

order - the order type, BucketOrder.ASCENDING, BucketOrder.DESCENDING or BucketOrder.NONE

totalPosition - the position of the total bucket

Throws:

JRException

Method Detail

createOrderComparator

public static Comparator<Object> createOrderComparator(Comparator<Object> comparator,
                                                       BucketOrder order)

isSorted

public boolean isSorted()

computeTotal

public boolean computeTotal()

Whether this bucket needs total calculation.

Returns:

this bucket needs total calculation

setComputeTotal

public void setComputeTotal()

Instructs that the bucket will need total bucket calculation.

See Also:

computeTotal()

getTotalPosition

public CrosstabTotalPositionEnum getTotalPosition()

Returns the total bucket position.

Returns:

the total bucket position

getOrderer

public BucketOrderer getOrderer()

getOrder

public BucketOrder getOrder()

isMergeHeaderCells

public boolean isMergeHeaderCells()

setMergeHeaderCells

public void setMergeHeaderCells(boolean mergeHeaderCells)

create

public BucketDefinition.Bucket create(Object value)

Creates a BucketValue object for a given value.

Parameters:

value - the value

Returns:

the corresponding BucketValue object